vtkOrientationMarkerWidget icon

I saw here an example of how to put a little volume (rabbit) as vtkOrientationMarkerWidget: https://vtk.org/Wiki/VTK/Examples/Cxx/Widgets/OrientationMarkerWidget
How can I use another image instead of vtkXMLPolyDataReader (vtp file) ? Sorry for this easy question, but I have searched on internet this kind of files and I found nothing …

I intend to use a cranium (man head) instead of that rabbit :slight_smile:

Or, how can I load in a xml file a little cranium data ? As far I saw, I could load any kind of file in order to use it in OrientationMarkerWidget